Thermodynamic analysis and AFM study of the interaction of palmitic acid with DPPE in Langmuir monolayers

The phase behavior and surface morphology changes of binary monolayers of Palmitic acid and DPPE have been investigated using a combination of LB technique and AFM at the air/water interface. The results showed that surface pressure values, intermolecular proportions, distances and interaction forces as well as subphase pH have significant influence on thermodynamic and morphological properties of the binary systems.